character: Officer Johnson
topic: Chain of Custody in Evidence Handling
grade: 9
subject: Science
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character: Forensic Scientist
topic: Importance of Evidence Preservation
grade: 9
subject: Science
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character: Detective Ramirez
topic: Chain of Custody Procedures
grade: 9
subject: Science
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character: Court Clerk
topic: Legal Implications of Evidence Handling
grade: 9
subject: Science
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